Firearm rear sight



FIG. 1 is a front perspective view of the firearm rear sight embodyingthe new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines and unshaded areas depict portions of the firearm rearsight that form no part of the claimed design. Broken lines adjacent tounshaded areas are boundaries to the claim and form no part thereof.

CLAIM The ornamental design for a firearm rear sight, as shown anddescribed.